Vocaloid producer kono will release a new single, "Ambiguous reverb" and "You and me," on August 26, 2025. In addition, a re-recording of kono's debut work from last year, "Moonlit night," titled "Moonlit night [2025 Ver.], will also be released at the same time. Kono began his music career in April 2024 and has released seven original songs to date. As with his previous works, Kono handled the lyrics, composition, and arrangement for this release. The track utilizes the CeVIO AI song voice "Kafu." "Ambiguous reverb" is a song themed around "summer unrequited love." While Kono's previous works were characterized by simple band sounds, In this track, the lyrics delicately depict the complex emotions of a protagonist in the midst of unrequited love, supported by a variety of instruments and sound effects. Additionally, the chord progression blending jazz elements into pop music and the fast-paced scene transitions are highlights worth noting. This is a track we highly recommend for those spending a summer night unable to take that final step.